Screening in anisotropic superfluids and the superfluid density in underdoped cuprates

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dc.creatorCase, Matthew J.
dc.creatorHerbut, Igor F.
dc.date2005-04-11
dc.date2005-07-06
dc.date.accessioned2026-07-07T06:18:16Z
dc.date.available2026-07-07T06:18:16Z
dc.descriptionWe examine the nature of the collective excitations in a strongly anisotropic system of bosons interacting via Coulomb interaction. Such a system has often been used in the past to model the effects of quantum and classical phase fluctuations on the superfluid density of underdoped cuprates. Depending on the anisotropy and the effective strength of the interaction we find four different regimes for the temperature dependence of the superfluid density. Coulomb interaction in underdoped cuprates is argued to be effectively short-ranged, and of order of unity in appropriately defined units.
dc.description6 pages, 3 figures; Ver.2 includes improved discussion and updated figure 3 with experimental data
dc.identifierhttps://arxiv.org/abs/cond-mat/0504266
dc.identifierhttp://arxiv.org/abs/cond-mat/0504266
dc.identifierPhysical Review B, vol. 72, 104503 (2005).
dc.identifierdoi:10.1103/PhysRevB.72.104503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94680
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleScreening in anisotropic superfluids and the superfluid density in underdoped cuprates
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